Method and device for diagnosis of a sensor

In a method for the diagnosis of a sensor, in particular a pedal-travel sensor of a motor vehicle, a first signal (S1) and at least one second equivalent signal (S2) are delivered. If the second signal (S2) is time-delayed with respect to the first signal (S1), at least the previous curve of the first signal (S1) and/or the previous curve of the second signal (S2) is taken into account.